We thought we had a hawk problem but the kids have seen a fox at least twice. No night-time losses as the birds are locked in the barn/run. Just during the day. I hate keeping the birds in the barn - especially when it is so hot outside but it's a gamble to let them out during the day. I'm trying to find a border collie or some such dog to protect the birds but they are so costly. Guess I'll try the urine idea and possibly tie plastic bags around my fence.